/**
 * DynamicReports - Free Java reporting library for creating reports dynamically
 *
 * Copyright (C) 2010 - 2013 Ricardo Mariaca
 * http://www.dynamicreports.org
 *
 * This file is part of DynamicReports.
 *
 * DynamicReports is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DynamicReports is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with DynamicReports. If not, see <http://www.gnu.org/licenses/>.
 */

package net.sf.dynamicreports.examples.adhoc;

import static net.sf.dynamicreports.report.builder.DynamicReports.*;

import java.math.BigDecimal;
import java.util.Date;

import net.sf.dynamicreports.adhoc.AdhocManager;
import net.sf.dynamicreports.adhoc.configuration.AdhocCalculation;
import net.sf.dynamicreports.adhoc.configuration.AdhocColumn;
import net.sf.dynamicreports.adhoc.configuration.AdhocConfiguration;
import net.sf.dynamicreports.adhoc.configuration.AdhocGroup;
import net.sf.dynamicreports.adhoc.configuration.AdhocReport;
import net.sf.dynamicreports.adhoc.configuration.AdhocSort;
import net.sf.dynamicreports.adhoc.configuration.AdhocSubtotal;
import net.sf.dynamicreports.adhoc.report.DefaultAdhocReportCustomizer;
import net.sf.dynamicreports.examples.Templates;
import net.sf.dynamicreports.jasper.builder.JasperReportBuilder;
import net.sf.dynamicreports.report.builder.ReportBuilder;
import net.sf.dynamicreports.report.datasource.DRDataSource;
import net.sf.dynamicreports.report.definition.datatype.DRIDataType;
import net.sf.dynamicreports.report.exception.DRException;
import net.sf.jasperreports.engine.JRDataSource;

/**
 * @author Ricardo Mariaca (r.mariaca@dynamicreports.org)
 */
public class AdhocCustomizerReport {

	public AdhocCustomizerReport() {
		build();
	}

	private void build() {
		AdhocConfiguration configuration = new AdhocConfiguration();
		AdhocReport report = new AdhocReport();
		configuration.setReport(report);

		//columns
		AdhocColumn column = new AdhocColumn();
		column.setName("quantity");
		report.addColumn(column);
		column = new AdhocColumn();
		column.setName("unitprice");
		report.addColumn(column);
		//groups
		AdhocGroup group = new AdhocGroup();
		group.setName("item");
		report.addGroup(group);
		//subtotal
		AdhocSubtotal subtotal = new AdhocSubtotal();
		subtotal.setName("quantity");
		subtotal.setCalculation(AdhocCalculation.COUNT);
		report.addSubtotal(subtotal);
		subtotal = new AdhocSubtotal();
		subtotal.setCalculation(AdhocCalculation.SUM);
		subtotal.setName("unitprice");
		report.addSubtotal(subtotal);
		//sorts
		AdhocSort sort = new AdhocSort();
		sort.setName("item");
		report.addSort(sort);

	  try {
			JasperReportBuilder reportBuilder = AdhocManager.createReport(configuration.getReport(), new ReportCustomizer());
			reportBuilder.setDataSource(createDataSource());
			reportBuilder.show();
		} catch (DRException e) {
			e.printStackTrace();
		}
	}

	private JRDataSource createDataSource() {
		DRDataSource dataSource = new DRDataSource("item", "orderdate", "quantity", "unitprice");
		for (int i = 0; i < 15; i++) {
			dataSource.add("Book", new Date(), (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
		}
		for (int i = 0; i < 20; i++) {
			dataSource.add("PDA", new Date(), (int) (Math.random() * 10) + 1, new BigDecimal(Math.random() * 100 + 1));
		}
		return dataSource;
	}

	public static void main(String[] args) {
		new AdhocCustomizerReport();
	}

	private class ReportCustomizer extends DefaultAdhocReportCustomizer {

		/**
		 * If you want to add some fixed content to a report that is not needed to store in the xml file.
		 * For example you can add default page header, footer, default fonts,...
		 */
		@Override
		public void customize(ReportBuilder<?> report, AdhocReport adhocReport) throws DRException {
			super.customize(report, adhocReport);
			//default report values
			report.setTemplate(Templates.reportTemplate);
			report.title(Templates.createTitleComponent("AdhocCustomizer"));
			//a fixed page footer that user cannot change, this customization is not stored in the xml file
			report.pageFooter(Templates.footerComponent);
		}

		/**
		 * This method returns a field type from a given field name.
		 */
		@Override
		protected DRIDataType<?, ?> getFieldType(String name) {
			if (name.equals("item")) {
				return type.stringType();
			}
			if (name.equals("orderdate")) {
				return type.dateType();
			}
			if (name.equals("quantity")) {
				return type.integerType();
			}
			if (name.equals("unitprice")) {
				return type.bigDecimalType();
			}
			return super.getFieldType(name);
		}

		/**
		 * If a user doesn’t specify a column title, getColumnTitle is evaluated and the return value is used as a column title.
		 */
		@Override
		protected String getFieldLabel(String name) {
			if (name.equals("item")) {
				return "Item";
			}
			if (name.equals("orderdate")) {
				return "Order date";
			}
			if (name.equals("quantity")) {
				return "Quantity";
			}
			if (name.equals("unitprice")) {
				return "Unit price";
			}
			return name;
		}

	}
}